XK0-006 Security Practice Question
Which THREE of the following commands are used to manage iptables rules? (Select THREE.)
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
iptables -I
iptables is used with options -A (append), -I (insert), -D (delete). -L lists rules, -F flushes. -j is for target, not a command itself. -p is for protocol. -s is source.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
iptables -p
Why it's wrong here
-p specifies protocol, not a management action.
- ✗
iptables -j
Why it's wrong here
-j specifies the target (ACCEPT, DROP), not a management action.
- ✓
iptables -I
Why this is correct
Inserts a rule at a specified position.
- ✓
iptables -A
Why this is correct
Appends a rule to a chain.
- ✓
iptables -D
Why this is correct
Deletes a rule from a chain.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This XK0-006 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the XK0-006 exam.